Goodbye blanket weed isa unique worldwide patented bio product consisting of bacteria cultured on barley straw enzymes and activated barley straweasy to use no mess no measuring simply drop one water soluble sachet of nishikoi goodbye blanket weed into the pond or filter every weekone 25g water soluble sachet treats ponds up to 8000 gallonseach pack of nishikoi goodbye blanket weed is an 8 week treatment for a 8000 gallon pondeffective against blanketweed green water and organic sl